Viessmann Vitocrossal 300 Service Instructions For Contractors page 92

Diagnosis and service scans
Diagnosis
(cont.)
The value "Adjusted outside temp" is reset to the actual value.
1. Press OK and å simultaneously
for approx. 4 s.
2. "Diagnosis"
Brief scan
In the brief scan, you can scan temperatures, software versions and connected com-
ponents, for example.
1. Press OK and å simultaneously for approx. 4 s.
2. "Diagnosis"
3. "Brief scan"
4. Press OK.
The display shows 9 lines with 6 fields each.
Diagnose Kurzabfrage
1:
1 F 0 A
2: 0 0 0 0
0 0 0 0
3:
4: 0 0 0 0
Wählen mit
For an explanation of the relevant values in the individual lines and fields, see
the following table:
Line (brief
scan)
1
1: Software version
Control unit
2: System scheme 01
to 10
92
1 2
0 0
0 0
0 0
2
Appliance version
Number
of KM
BUS sub-
scribers
3. "Reset data"
4. Select required value (e.g. "Burner
starts") or "All details".
Field
3 4
Maximum demand temperature
5 6
Burner control unit ver-
sion